This specification covers asbestos felting impregnated with phenolic resin, the resin being processed to a "B" stage condition, and furnished in continuous rolls.
This specification covers asbestos felting impregnated with phenolic resin, the resin being processed to a "B" stage condition, and furnished in continuous rolls.
This specification covers asbestos felting impregnated with phenolic resin, the resin being processed to a "B" stage condition, and furnished in continuous rolls.
This specification covers asbestos felting impregnated with phenolic resin, the resin being processed to a "B" stage condition, and furnished in continuous rolls.